Glacial lake outburst flooding is a flood that's produced by the quick, unexpected release of water from a glacial lake.

Because the flooding has been a growing concern, city officials have installed emergency flood barriers along several miles of riverbanks.

Officials in Alaska have advised residents to evacuate the state's capital city Wednesday as a melting glacier is expected to cause major flooding.

Glacial lake outburst flooding is a flood that's produced by the quick, unexpected release of water from a glacial lake.

A 'glacial outburst' – a burst of water from a glacial lake – threatened to engulf residents of Juneau, Alaska.

Alaskans were forced to evacuate their homes after the Mendenhall River was overwhelmed on Tuesday, sending dangerous floodwaters and debris into surrounding communities.